Ratchet-wrench



S. E. HUFF.

RATCHET WRENCH.

APPLICATION FILED APR. 13. 1920.

1,389,759. PatentedSept. 6, 1921.

INVE OR. if

A TTORNE Y.

SIRENO'E. RUFF, OF GREELEY, COLORADO.

Specification of Letters Patent.

RATCHET-WBENGH.

Patented Sept. 6, 1921.

Application filedApril 13, 1920. Serial No. 373,468.

T 0 aZZ whom it may concern Be it known that I, SIRENO E. Herr, a citizen of the United States of America, and resident of Greeley, in the county of weld and State of Colorado, have invented certain new and useful Improvements in Ratchet-Wrenches, of which the following is a specification.

This invention relates to tools and particularly to wrenches, the said invention relating more particularly to ratchet wrenches.

An object of this invention is to provide a novel head having jaws for embracing a nut and a toothed or serrated edge forming a ratchet adapted to be engaged by a dog as the handle is oscillated for moving a nut.

A still further object of this invention is to provide a ratchet wrench of the character indicated, in which the dog engaging the ratchet has two noses, one of which lies on each side of the handle so as to equalize the strain and insure proper action as the handle is manipulated.

A still further object of this invention is to produce a wrench of the character indicated which can be constructed inexpensively and which will prove strong and durable as well as efiicient and satisfactory in use.

With the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompanying drawings forming part of this specification, wherein like characters denote corresponding parts in the several views, and in which- Figure l is a view in elevation of a wrench embodying the invention, and

Fig. 2 is a top plan view thereof.

In these drawings 5 denotes a head having an aperture 6 therein, forming a seat for a screw 7 which screw is mounted on a pin 8 threaded at its lower end in a socket 9 formed in the head, the said pin extending through an aperture 10 leading from the edge of the head. The screw 6 has its pe-' riphery extending beyond the sides of the head so as to be engaged by the thumb and finger of an operator for turning the same, and in order to provide clearances, the sides of the head are preferably recessed or concaved as shown at 11. V

The head 5 has a rigid. jaw 12 and an adjustable or sliding jaw 13, the latter of which is made integral with a toothed bar 142 which is slidable in a recess 15 extending from the edge ofthe head. The bar is preferably T- shaped in cross section, and the recess 15 is correspondingly shaped so that undue pla I or lost motion between the head and the bar may be obviated, and it furthermore insures a strong and durable construction. The head 5 of course has a clearance for the sliding movement which is accorded the movable aw 13, and as the screw 6 is in a position to engage the teeth of the bar 14, rotation of the said screw communicates motion to the bar and causes the movement of the jaw 13 with relation tothe stationary jaw.

The head at its rear side is bifurcated as shown at 16 to form a seat for the end of the handle 17, the said end of the handle being pivotally mounted on a pin 18. The surfaces of the furcations 19 and 20 have corresponding ratchet teeth or shoulders 21 adapted to be engaged by dogs 22, it being understood that in the present embodiment of the invention, the dogs are mounted on a pivot 23 extending through the handle and that the ends of the dogs remote from the handle have extensions 24 which lie at right angles to the axis of the handle and that the said extensions are connected by a web 25 forming a yoke, so that by manipulating the yoke, both dogs are simultaneously removed with relation to the ratchet teeth.

spring 26 may be so anchored in the recess 27 as to exert pressure on the yoke of the dogs, and owing to the fact that both of the said dogs are connected together, they will be moved in unison by the said spring, or by application of power to the yoke.

WVhen the handle is oscillated, as for instance when it is lifted when the device is in the position shown in Fig. 1, the dogs will ride over the inclined surfaces of the ratchet teeth, but on reverse movement of the lever, the dogs will engage the shoulders of the teeth and communicate motion to the head of the wrench for communicating motion to a nut or the like, engaged by the said head.

The device can be made inexpensively when its strength and durability are considered, as the head and the ratcheting portion thereof is made of a single piece shaped to receive the working elements which co-act with the stationary portions of the head.

I claim:

In a ratchet wrench, a head having concaved sides and an opening in the concaved portions of the sides forming a seat for a screw, a pin lying in the said head and extending through the Opening on which the screw is rotatably mounted, a jaw formed integral with the said head, the said jaw having a way therein extending from one 7 edge, a bar having a flat outer surface slidablein the said Way. and having teeth, the

said Way intersecting the opening in the head to permit the screw to engage the teeth of the bar, a movable jaw carried by the said bar, the said head having a bifurcated rear section, theedges of vthe said rear section I teeth.

having ratchet teeth thereon, a handle ex- ,tending into -.-thehii'urcated section of the head, a pin on which the said handle is oscillatably mounted, a dog on each side of the handle, means for pivotally connecting the said dog to the handle whereby the noses dogs to form a yoke, and a spring for urging the noses of the dogs toward the ratchet sneENoE. HUFF. 

